Color

#4f429a

#4f429a
hex#4f429a
rgbrgb(79, 66, 154)
hslhsl(249, 40%, 43%)
oklchoklch(0.441 0.138 286)
Closest name: Blueberry (#464196)Relative luminance 0.0789

Colors that go with #4f429a

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8c9a42

#42609a · #7b429a

#9a4f42 · #429a4f

Split-complementary

Open in tool →

#9a7b42 · #609a42

#9a4260 · #8c9a42 · #429a7b

Contrast

#4f429a as textRatioAAAA largeAAAFix
Aaon white
8.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.58:1failfailfail
  • AA: use #7669bf as the text (4.54:1)
  • AAA: use #978dce as the text (7.02:1)
  • AA: or shift the background to #c2c2c2 (4.57:1)
  • AAA: or shift the background to #f0f0f0 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f429a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#4f429a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f429a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #4f429a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f429a-a79cc4-dfae4e-271f2d-e9ecf1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md